diff --git a/README.md b/README.md
index 32fcfc0..628d6ec 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 
 An rich editor for Wikipedia [Route Diagram Template](https://en.wikipedia.org/wiki/WP:RDT).
 
-Built with [Vue.js](https://vuejs.org/), [Pinia](https://pinia.vuejs.org/) and [brace](https://thlorenz.com/brace/).
+Built with [Vue.js](https://vuejs.org/), [Pinia](https://pinia.vuejs.org/) and [Ace](https://ace.c9.io/).
 
 ![](screenshot.png)